William Niebles -Núñez, Alexander Perez Cordero, and Donicer E Montes Vergara. “Evaluation of the Level of Statistical Association Between the Gross Domestic Product and the Percentage of Male Population Among Colombian Emigrants”. Migration Letters 20, no. S2 (July 28, 2023): 1123–1129. Accessed December 24, 2024. https://migrationletters.com/index.php/ml/article/view/4806.